droppedAttributesCount not showing in debug (verbosity: detailed) #14202
Description
Component(s)
exporter/debug
What happened?
Describe the bug
The droppedAttributesCount field isn't shown in debug output.
Steps to reproduce
I send a trace via HTTP OTLP with 1 or more span(s) that look like this:
{
"traceId": "......",
"spanId": ".....",
"name": "span",
"kind": "SPAN_KIND_CLIENT",
"start_time_unix_nano": .....,
"end_time_unix_nano": .....,
"droppedAttributesCount": 23,
"attributes": [],
"events": [],
"droppedEventsCount": 0,
"status": {
"code": 1
}
}
and in the collector debug log, I see:
Span #4
Trace ID : .....
Parent ID :
ID : ...........
Name : span 5
Kind : Client
Start time : 2025-11-23 01:21:14.897167757 +0000 UTC
End time : 2025-11-23 01:21:14.898311 +0000 UTC
Status code : Ok
Status message :
{"resource": {"service.instance.id": "790e00c3-7ae4-4dd1-a4da-64e85f4ec3a1", "service.name": "otelcol-contrib", "service.version": "0.132.0"}, "otelcol.component.id": "debug", "otelcol.component.kind": "exporter", "otelcol.signal": "traces"}
No indications of droppedAttributesCount (or indeed droppedEventsCount).
Looking at the trace.proto definition, this does seem like a valid field. Am I missing something?
What did you expect to see?
What did you see instead?
Collector version
0.132.0
Environment information
Environment
OS: (e.g., "Ubuntu 20.04")
Compiler(if manually compiled): (e.g., "go 14.2")
OpenTelemetry Collector configuration
receivers:
otlp:
protocols:
http:
endpoint: 127.0.0.1:4318
exporters:
debug:
verbosity: detailed
service:
pipelines:
traces:
receivers: [otlp]
exporters: [debug]Log output
Additional context
No response
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